Colorblind: status shapes

I was working on a table, with status icons. I was using colored dots (yellow/red/green color) to transmit the status (success, warning, danger)... Obviously, this is a problematic move if we think about colorblind people.

I was trying to find a reference on the shapes that transmit status but seems that is no standard...

These are 2 examples that I found:

Is that any conventions on this? Do you know if is any reference in W3C?